Nursing Elites

1. A client with asthma develops respiratory acidosis. Based on this diagnosis, what should the nurse expect the client's serum potassium level to be?

• A. normal
• B. elevated
• C. low
• D. unrelated to the pH

Correct answer: B

Rationale: In respiratory acidosis, the body retains CO2, leading to increased hydrogen ion concentration and a drop in blood pH. As pH decreases, serum potassium levels increase due to the movement of potassium out of cells to compensate for the acidosis. Elevated serum potassium levels are expected in respiratory acidosis. Choice A ('normal') is incorrect because potassium levels are expected to be elevated in respiratory acidosis. Choice C ('low') is incorrect as potassium levels rise in this condition. Choice D ('unrelated to the pH') is incorrect as serum potassium levels are directly impacted by changes in pH in respiratory acidosis.

2. A client has been diagnosed with Disseminated Intravascular Coagulation (DIC) and transferred to the medical intensive care unit (ICU) following an acute bleeding episode. In the ICU, continuous Heparin drip therapy is initiated. Which of the following assessment findings indicates a positive response to Heparin therapy?

• A. increased platelet count
• B. increased fibrinogen
• C. decreased fibrin split products
• D. decreased bleeding

Correct answer: B

Rationale: Effective Heparin therapy should halt the process of intravascular coagulation, leading to increased availability of fibrinogen. Heparin interferes with thrombin-induced conversion of fibrinogen to fibrin. Therefore, an increased fibrinogen level indicates a positive response to Heparin therapy. While increased platelet count and decreased bleeding are positive outcomes, the specific indicator for Heparin therapy response is the increase in fibrinogen level. Decreased fibrin split products would also be a positive response, but an increase in fibrinogen directly reflects the impact of Heparin therapy.

3. A client is being taught about self-administration of Haldol 15 mg po hs. For which side effect/s should the client seek medical attention?

• A. Shortness of breath and fatigue
• B. Restlessness and muscle spasms
• C. Dry mouth
• D. Diarrhea

Correct answer: B

Rationale: The correct answer is restlessness and muscle spasms. Haldol, an antipsychotic medication, can cause extrapyramidal side effects such as muscle spasms and restlessness. These side effects can be serious and should prompt the client to seek medical attention. Shortness of breath, fatigue, dry mouth, and diarrhea are not commonly associated with Haldol use, making choices A, C, and D incorrect.

4. Which symptom is the client who self-administered an overdose of acetaminophen most likely to exhibit?

• A. Pink frothy sputum
• B. Seizure activity
• C. Jaundiced conjunctiva
• D. Diaphoresis and fever

Correct answer: C

Rationale: When a client self-administers an overdose of acetaminophen, the liver is primarily affected. Jaundiced conjunctiva, which is yellowing of the eyes, is a common symptom of liver damage. Pink frothy sputum is typically associated with conditions like pulmonary edema, not acetaminophen overdose. Seizure activity is not a common symptom of acetaminophen overdose but can be seen in other toxicities. Diaphoresis and fever are more generalized symptoms and not specific to acetaminophen overdose.

5. An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?

• A. It protects the bacteria from antibiotic and immunologic destruction.
• B. Glycocalyx neutralizes the antibiotic, rendering it ineffective.
• C. It competes with the antibiotic for binding sites on the microbe.
• D. Glycocalyx provides nutrients for microbial growth.

Correct answer: A

Rationale: Bacterial glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It plays a significant role in protecting bacteria by enhancing adherence to surfaces, resisting phagocytic engulfment by white blood cells, and preventing antibiotics from contacting the microbe. Choice A is correct because glycocalyx shields the bacteria from both antibiotics and the immune system, allowing the infection to persist. Choices B, C, and D are incorrect because glycocalyx does not neutralize antibiotics, compete for binding sites with antibiotics, or provide nutrients for microbial growth.

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